278
FNCA52 TJSJ 051930
FWFSJU
FIRE WEATHER PLANNING FORECAST FOR PUERTO RICO
NATIONAL WEATHER SERVICE SAN JUAN PR
330 PM AST SUN APR 5 2026
DISCUSSION
NO FIRE DANGER IS EXPECTED TODAY.
PRZ014-060800-
SOUTHEAST COASTAL PLAINS-
330 PM AST SUN APR 5 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 60 40 50 50
TEMP (24H TREND) 70 (-1) 87 (+3) 70 86
RH % (24H TREND) 97 (+6) 63 (-5) 97 65
WIND 20FT/EARLY(MPH) E 11 SE 13 E 10 E 14 G22
WIND 20FT/LATE(MPH) E 11 SE 13 G21 E 11 SE 14 G22
MIXING HGT(FT-AGL/MSL) 4680 4340
TRANSPORT WND (MPH) SE 17 SE 17
VENT RATE (KT-FT) 70200 65100
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ015-060800-
SOUTHERN HILLS-
330 PM AST SUN APR 5 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 60 60 50 50
TEMP (24H TREND) 66 (-3) 83 (+4) 67 83
RH % (24H TREND) 99 (+6) 67 (-7) 99 69
WIND 20FT/EARLY(MPH) E 13 SE 12 E 11 SE 13
WIND 20FT/LATE(MPH) E 13 SE 12 E 11 SE 13
MIXING HGT(FT-AGL/MSL) 5280 4910
TRANSPORT WND (MPH) SE 16 SE 17
VENT RATE (KT-FT) 73920 73650
DISPERSION 5 5
DSI 5 6 5 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ016-060800-
NORTH COASTAL PLAINS-
330 PM AST SUN APR 5 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 70 60 20 70
TEMP (24H TREND) 69 (-2) 87 (+2) 69 87
RH % (24H TREND) 100 (+4) 61 (-7) 100 62
WIND 20FT/EARLY(MPH) E 13 E 14 SE 11 SE 14
WIND 20FT/LATE(MPH) SE 13 E 16 SE 11 E 16
MIXING HGT(FT-AGL/MSL) 5470 5200
TRANSPORT WND (MPH) SE 14 SE 13
VENT RATE (KT-FT) 65640 57200
DISPERSION 5 5
DSI 5 6 4 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ017-060800-
NORTHERN HILLS-
330 PM AST SUN APR 5 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER PCLDY PCLDY MCLEAR PCLDY
PRECIP TYPE TSTMS TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 70 80 10 80
TEMP (24H TREND) 67 (-2) 86 (+3) 67 86
RH % (24H TREND) 100 (+4) 61 (-6) 99 63
WIND 20FT/EARLY(MPH) E 11 E 11 SE 10 SE 11
WIND 20FT/LATE(MPH) E 8 E 14 SE 5 SE 14
MIXING HGT(FT-AGL/MSL) 6150 5530
TRANSPORT WND (MPH) SE 12 SE 12
VENT RATE (KT-FT) 61500 55300
DISPERSION 5 5
DSI 3 6 2 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ018-060800-
WEST COAST-
330 PM AST SUN APR 5 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER MCLEAR PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 20 60 20 50
TEMP (24H TREND) 69 (-1) 88 (+2) 70 88
RH % (24H TREND) 99 (+6) 62 (-5) 97 65
WIND 20FT/EARLY(MPH) E 16 SE 14 E 14 SE 16
WIND 20FT/LATE(MPH) E 16 SE 16 E 13 SE 17
MIXING HGT(FT-AGL/MSL) 4910 4620
TRANSPORT WND (MPH) SE 17 SE 18
VENT RATE (KT-FT) 73650 73920
DISPERSION 5 5
DSI 5 6 5 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ019-060800-
EASTERN INTERIOR-
330 PM AST SUN APR 5 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER PCLDY MCLDY PCLDY MCLDY
PRECIP TYPE TSTMS TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 70 60 50 70
TEMP (24H TREND) 68 (-2) 84 (+3) 69 84
RH % (24H TREND) 100 (+4) 67 (-6) 100 68
WIND 20FT/EARLY(MPH) SE 17 SE 14 SE 13 SE 16
WIND 20FT/LATE(MPH) SE 17 SE 14 SE 13 SE 14
MIXING HGT(FT-AGL/MSL) 5660 5190
TRANSPORT WND (MPH) SE 16 SE 17
VENT RATE (KT-FT) 79240 77850
DISPERSION 5 5
DSI 5 6 5 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ022-060800-
LUQUILLO MOUNTAIN RANGE-
330 PM AST SUN APR 5 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER PCLDY MCLDY PCLDY MCLDY
PRECIP TYPE TSTMS TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 70 60 50 60
TEMP (24H TREND) 65 (-3) 79 (+3) 66 79
RH % (24H TREND) 100 (+1) 72 (-6) 100 73
WIND 20FT/EARLY(MPH) SE 13 SE 12 SE 11 SE 13
WIND 20FT/LATE(MPH) SE 13 SE 12 SE 11 SE 13
MIXING HGT(FT-AGL/MSL) 3830 3880
TRANSPORT WND (MPH) SE 18 SE 17
VENT RATE (KT-FT) 61280 58200
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ023-060800-
CENTRAL MOUNTAIN RANGE-
330 PM AST SUN APR 5 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER MCLEAR PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 30 80 10 70
TEMP (24H TREND) 64 (-3) 83 (+5) 65 83
RH % (24H TREND) 100 (+6) 64 (-8) 100 67
WIND 20FT/EARLY(MPH) SE 8 SE 11 SE 8 SE 11
WIND 20FT/LATE(MPH) SE 8 SE 10 SE 6 SE 11
MIXING HGT(FT-AGL/MSL) 6310 5600
TRANSPORT WND (MPH) SE 13 SE 13
VENT RATE (KT-FT) 69410 61600
DISPERSION 5 5
DSI 2 6 2 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ024-060800-
CAYEY MOUNTAIN RANGE-
330 PM AST SUN APR 5 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER PCLDY MCLDY PCLDY MCLDY
PRECIP TYPE TSTMS TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 60 60 50 60
TEMP (24H TREND) 66 (-2) 79 (+2) 67 79
RH % (24H TREND) 100 (+1) 74 (-4) 100 76
WIND 20FT/EARLY(MPH) E 11 SE 11 SE 9 SE 12
WIND 20FT/LATE(MPH) SE 11 SE 11 SE 10 SE 12
MIXING HGT(FT-AGL/MSL) 4800 4400
TRANSPORT WND (MPH) SE 16 SE 17
VENT RATE (KT-FT) 67200 66000
DISPERSION 5 5
DSI 6 6 5 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ025-060800-
VIEQUES-
330 PM AST SUN APR 5 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 50 50 40
TEMP (24H TREND) 72 (-1) 85 (0) 72 85
RH % (24H TREND) 92 (+1) 62 (-1) 94 62
WIND 20FT/EARLY(MPH) E 19 SE 17 SE 17 SE 17
WIND 20FT/LATE(MPH) SE 19 SE 16 SE 17 SE 16
MIXING HGT(FT-AGL/MSL) 2940 3060
TRANSPORT WND (MPH) SE 21 SE 21
VENT RATE (KT-FT) 52920 55080
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ026-060800-
CULEBRA-
330 PM AST SUN APR 5 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 40 50 40
TEMP (24H TREND) 73 (-2) 86 (+1) 73 86
RH % (24H TREND) 91 (+2) 61 (-4) 95 62
WIND 20FT/EARLY(MPH) E 19 SE 17 SE 17 SE 17
WIND 20FT/LATE(MPH) SE 19 SE 17 SE 17 SE 17
MIXING HGT(FT-AGL/MSL) 2880 2820
TRANSPORT WND (MPH) SE 22 SE 21
VENT RATE (KT-FT) 54720 50760
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ027-060800-
SOUTHWEST COASTAL PLAINS AND MONA ISLAND-
330 PM AST SUN APR 5 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 30 40 40
TEMP (24H TREND) 70 (-1) 88 (+3) 71 88
RH % (24H TREND) 95 (+6) 59 (-5) 94 61
WIND 20FT/EARLY(MPH) E 17 G24 E 17 G24 E 16 E 18 G26
WIND 20FT/LATE(MPH) E 18 SE 17 G25 E 16 SE 18 G26
MIXING HGT(FT-AGL/MSL) 4720 4490
TRANSPORT WND (MPH) SE 20 SE 22
VENT RATE (KT-FT) 80240 85310
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
VIZ001-060800-
SAINT THOMAS AND SAINT JOHN-
330 PM AST SUN APR 5 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 50 40 40 50
TEMP (24H TREND) 72 (-3) 85 (+1) 72 85
RH % (24H TREND) 95 (+7) 60 (-5) 96 60
WIND 20FT/EARLY(MPH) E 20 SE 18 SE 18 SE 18
WIND 20FT/LATE(MPH) SE 20 SE 18 SE 18 SE 17
MIXING HGT(FT-AGL/MSL) 2910 3140
TRANSPORT WND (MPH) E 24 SE 23
VENT RATE (KT-FT) 61110 62800
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
VIZ002-060800-
ST CROIX-
330 PM AST SUN APR 5 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 30 30 50 50
TEMP (24H TREND) 72 (-2) 86 (+1) 72 86
RH % (24H TREND) 94 (+4) 62 (-4) 95 62
WIND 20FT/EARLY(MPH) E 19 SE 17 E 17 E 17
WIND 20FT/LATE(MPH) E 19 SE 17 E 17 E 16
MIXING HGT(FT-AGL/MSL) 4280 4250
TRANSPORT WND (MPH) SE 22 SE 21
VENT RATE (KT-FT) 81320 76500
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
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